Results 191 to 200 of about 725,179 (250)

Deciduous teeth contain histories of developmental disturbances

Early Human Development, 1979
The crowns of the deciduous teeth are permanent structures which form by incremental growth during the second half of pregnancy and first year of life. These structures become available between the ages of 6 and 12 years with normal exfoliation and can then be studied histologically to demonstrate evidence of metabolic disturbances occurring during ...
R S, Levine, E P, Turner, J, Dobbing
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The Disturbing History of Intermediate Disturbance

Oikos, 1999
P 0 Opinion is intended to facilitate communication between reader and author and reader and I I reader. Comments, viewpoints or suggestions arising from published papers are welcome. N Discussion and debate about important issues in ecology, e.g. theory or terminology, may I I also be included.
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Case histories of some artificial crustal disturbances

Engineering Geology, 1974
Abstract The Shivajisagar lake area of the Koyna Hydroelectric Project, situated in the Deccan Trap region of the aseismic Indian Shield began to exhibit mild seismicity immediately after the impounding of the reservoir in 1963. This mild seismicity culminated in a major earthquake of magnitude 7.0 on December 10, 1967, followed by numerous ...
S.K. Guha, P.D. Gosavi, B.N.P. Agarwal, J.G. Padale, S.C. Marwadi   +4 more
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Disturbance, Life History, and Optimal Management for Biodiversity

AMBIO: A Journal of the Human Environment, 2003
Both frequency and intensity of disturbances in many ecosystems have been greatly enhanced by increasing human activities. As a consequence, the short-lived plant species including many exotics might have been dramatically increased in terms of both richness and abundance on our planet, while many long-lived species might have been lost.
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Disturbance Regimes and Life‐History Evolution

The American Naturalist, 2001
Disturbance regimes are ecologically important, but many of their evolutionary consequences are poorly understood. A model is developed here that combines the within- and among-season dynamics of disturbances with evolutionary life-history theory. "Disturbance regime" is defined in terms of disturbance timing, frequency, predictability, and severity ...
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Life histories and the role of disturbance

Deep Sea Research and Oceanographic Abstracts, 1973
Abstract An alternative to the stability-time hypothesis explaining the high benthic faunal diversities in the deep sea ( Sanders , 1968; Slobodkin and Sanders , 1969) has been proposed by Dayton and Hessler (1972). According to Dayton and Hessler, nonselective predation reduces competition between species thereby allowing more species to ...
J. Frederick Grassle, Howard L. Sanders
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Power disturbance case histories

[Proceedings] 1991 Rural Electric Power Conference. Papers presented at the 35th Annual Conference, 2002
It has been over four years since the Iowa Rural Electric Cooperatives (RECs) jointly purchased a power disturbance monitor, to help its membership resolve electronic equipment problems. The power disturbance monitor that best fit the Cooperatives' needs was a BMI 4800 Power Scope.
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NATURAL HISTORY OF CARDIOVASCULAR DISTURBANCES

Acta Paediatrica, 1964
SummaryThe incidence and nature of the cardiomyopathy of Friedreich's ataxia are summarized in this chapter.1. In the present series of 56 cases, the incidence of a definitely abnormal ECG is about 90 per cent.2. Signs of heart disease are observed in 5 cases before manifestation of the neurological disease. An initial period of heart failure occurs in
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Disturbing Dogmas: Biologists and the History of Biology

Science in Context, 2013
The attitude of biologists to the history of their discipline varies. For some, a hazy knowledge of the recent past is all that is necessary to provide an explanatory basis for their work. They take it for granted that everything of value from the less recent past has been appropriately incorporated into present-day thinking.
Eva Jablonka, Marion J. Lamb
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